Abstract

In this case discussion, Barnhill and Devine collect and present a significant amount of recent research on the various reasons why people struggle to succeed in weight loss programmes. Specifically, the authors focus on what they call ‘behavioural weight loss interventions’, which are ‘research, clinical or public health efforts to promote individual healthy eating and physical activity behaviours’. As defined, this is a very broad category of interventions and presumably includes all kinds of dieting and weight loss programmes or promotion efforts short of private or independently chosen programmes. The authors argue, in a nutshell, that these clinical, research, and public health interventions have low efficacy, and while they may have some health or other benefits, the balance of evidence presented shows that they harm people in multiple ways.